id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
603,regex linking error with VC 7.1,nobody,John Maddock,"{{{
I see this error when linking against
libboost_regex-vc71-mt-1_33_1.lib:
msvcprt.lib(MSVCP71.dll) : error LNK2005: ""public:
static unsigned int __cdecl std::char_traits<unsigned
short>::length(unsigned short const *)""
(?length@?$char_traits@G@std@@SAIPBG@Z) already defined
in libboost_regex-vc71-mt-1_33_1.lib(usinstances.obj)

libs/regex/src/usinstances.cpp appears to have problems.

Steps to reproduce:
- Create a console project with VC7.1.
- Set Character Set to ""Use Unicode Character Set""
- Use a Multi-threaded DLL
- Link against libboost_regex-vc71-mt-1_33_1.lib
- wchar_t should NOT be set as a native type
- Use the following code:

#include ""stdafx.h""
#include <string>
#include <boost/regex.hpp>

int _tmain(int argc, _TCHAR* argv[])
{
#if _UNICODE
	std::wstring strCurLine(L""sdfsdfggg"");
	std::wstring strMatchExp(L""lsdfkjsflk"");
	boost::wcmatch Matched;
	boost::wregex regex(strMatchExp.c_str());
#else
	std::string strCurLine(""sdfsdfggg"");
	std::string strMatchExp(""lsdfkjsflk"");
	boost::cmatch Matched;
	boost::regex regex(strMatchExp.c_str());
#endif
	boost::regex_search(strCurLine.c_str(), Matched, regex);

	return 0;
}

There are no linking errors if you build with wchar_t
as a native type or build with character set as ""Use
Mutli-Byte Character Set"".
}}}",Bugs,closed,,regex,None,,Fixed,,